U.S. patent application number 13/871988 was filed with the patent office on 2014-10-30 for orbital motor and generator.
This patent application is currently assigned to C. Michael Scroggins. The applicant listed for this patent is C. Michael Scroggins. Invention is credited to C. Michael Scroggins.
Application Number | 20140319940 13/871988 |
Document ID | / |
Family ID | 51788669 |
Filed Date | 2014-10-30 |
United States Patent
Application |
20140319940 |
Kind Code |
A1 |
Scroggins; C. Michael |
October 30, 2014 |
ORBITAL MOTOR AND GENERATOR
Abstract
Described herein is a technology for an electric motor system
that reduces stress in motor shaft bearings. Furthermore, the
electric motor system that provides an adequate heat ventilation is
described herein.
Inventors: |
Scroggins; C. Michael;
(Richmond, TX) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Scroggins; C. Michael |
|
|
US |
|
|
Assignee: |
Scroggins; C. Michael
Richmond
TX
|
Family ID: |
51788669 |
Appl. No.: |
13/871988 |
Filed: |
April 26, 2013 |
Current U.S.
Class: |
310/63 ; 310/420;
310/90 |
Current CPC
Class: |
H02K 9/08 20130101; H02K
1/30 20130101; H02K 5/04 20130101; H02K 1/22 20130101; H02K 3/47
20130101; H02K 19/22 20130101; Y02E 60/16 20130101; H02K 7/02
20130101; H02K 7/083 20130101; H02K 19/10 20130101; H02K 5/20
20130101 |
Class at
Publication: |
310/63 ; 310/420;
310/90 |
International
Class: |
H02K 1/30 20060101
H02K001/30; H02K 7/08 20060101 H02K007/08; H02K 9/06 20060101
H02K009/06 |
Claims
1. An electric motor system comprising: a motor frame; a motor
shaft that is positioned in the motor frame; a motor-shaft arm
extending perpendicularly from the motor shaft; a rotor winding
that is positioned on a tip of the motor-shaft arm, the rotor
winding is configured to receive inducing currents that facilitate
the rotor winding to orbit an axis of the motor shaft; a stator
winding that is configured to generate the inducing currents, the
stator winding being configured into a circular C-shaped stator
that substantially envelopes a circumferential path surface of the
orbiting rotor winding, the circumferential path surface includes
an outermost surface of a ring that is formed by the orbiting rotor
winding.
2. An electric motor system as recited in claim 1, wherein the
motor frame is configured to form a spherical shape.
3. An electric motor system as recited in claim 1, wherein the
motor-shaft arm acts as a vane.
4. An electric motor system as recited in claim 1, wherein the
stator winding includes an upper hemispherical winding and a lower
hemispherical winding to form the C-shaped stator, the upper
hemispherical winding envelopes a north side winding of the rotor
winding, the lower hemispherical winding envelopes a south side
winding of the rotor winding, wherein a section in between the
upper and the lower hemispherical windings is collinear with the
section that is in between the north and south side windings of the
rotor winding.
5. An electric motor system as recited in claim 1, wherein the
C-shaped stator envelopes at least three quarters of the rotor
winding.
6. An electric motor system as recited in claim 1 further
comprising a stator housing that is attached to the motor frame,
wherein an air gap is allocated between the motor frame and the
attached stator housing.
7. An electric motor system as recited in claim 1 further
comprising an upper bearing and a lower bearing that couples the
motor shaft to the motor frame, the upper bearing and the lower
bearing hold a top end and a bottom end, respectively, of the
vertical motor shaft.
8. An electric motor system as recited in claim 1 further
comprising a cooling mechanism that is located within the motor
frame, the cooling mechanism is positioned in an air gap on top or
below the motor-shaft arm.
9. A turbine comprising: a power source; an electric motor system
associated with the power source, the electric motor system
comprising: a motor frame; a motor shaft that is positioned in the
motor frame; a motor-shaft arm extending perpendicularly from the
motor shaft; a rotor winding that is associated with a tip of the
motor-shaft arm, the rotor winding is configured to receive
inducing currents that facilitate the rotor winding to orbit an
axis of the motor shaft a stator winding that is configured to
generate the inducing currents, the stator winding being configured
into a circular C-shaped stator that substantially envelopes a
circumferential path surface of the orbiting rotor winding, the
circumferential path surface includes an outermost surface of a
ring that is formed by the orbiting rotor winding.
10. A turbine as recited in claim 9, wherein the motor-shaft arms
act as a vane.
11. A turbine as recited in claim 9, wherein the rotor winding
includes a solid circular windings that is enveloped by the
C-shaped stator.
12. A turbine as recited in claim 9, wherein the C-shaped stator
envelopes at least three quarters of the orbiting rotor
winding.
13. A turbine as recited in claim 9, wherein the stator winding
includes a circular linear winding while the rotor winding includes
a semi-circular winding.
14. A turbine as recited in claim 9 further comprising a stator
housing that is attached to the motor frame, wherein an air gap is
allocated between the motor frame and the stator housing.
15. A turbine as recited in claim 9 further comprising an upper
bearing and a lower bearing that couples the motor shaft to the
motor frame, the upper bearing and the lower bearing hold a top end
and a bottom end of the motor shaft, respectively.
16. A turbine as recited in claim 9 further comprising a cooling
mechanism that is located within the motor frame, the cooling
mechanism is positioned in an air gap on top or below the
motor-shaft arm.
17. A method of manufacturing an orbital electric motor system
comprising: positioning a motor shaft in a motor frame; connecting
a motor-shaft arm perpendicularly from the motor shaft; positioning
a rotor winding at a tip of the motor-shaft arm, the rotor winding
is configured to receive inducing currents that facilitate the
rotor winding to orbit an axis of the motor shaft; constructing a
C-shaped stator that is configured to generate the inducing
currents, the C-shaped stator substantially envelopes a
circumferential path surface of the orbiting rotor winding, the
circumferential path surface includes an outermost surface of a
ring that is formed by the orbiting rotor winding.
18. A method as recited by claim 17 further comprising: coupling
each end of the motor shaft to the motor frame with a bearing;
allocating an air gap in between the motor frame and a stator
housing, the stator housing includes the constructed C-shaped
stator.
19. A method as recited by claim 17, wherein the constructing the
C-shaped stator includes a stator winding that envelopes at least
three quarters of the orbiting rotor winding.
20. A method as recited by claim 17, wherein the constructing the
C-shaped stator includes constructing an upper hemispherical
winding and a lower hemispherical winding to form the C-shaped
stator, the upper hemispherical winding envelopes a north side
winding of the rotor winding, the lower hemispherical winding
envelopes a south side winding of the rotor winding, wherein a
section in between the upper and the lower hemispherical windings
is collinear with the section in between the north and south side
windings.
Description
BACKGROUND
[0001] An electric motor is an electric machine that converts
electrical energy into a mechanical energy. The electric motor
typically operates through an interaction between an electric
motor's magnetic fields and winding currents to generate force
within the motor. This force provides a torque that may further be
the source of the mechanical energy in the electric motor.
[0002] The electric motor can also perform the reverse and act as
generators, to produce electrical energy from mechanical energy.
For example, in electrical generators such as an alternator or a
dynamo, the mechanical energy is transformed into electrical
energy. In this example, the electric motor finds applications as
diverse as industrial fans, blowers and pumps, machine tools,
household appliances, power tools, and disk drives.
[0003] Furthermore, the electric motors can be powered by direct
current sources, such as from batteries, motor vehicles or
rectifiers, or by alternating current sources, such as from the
power grid, inverters or generators. The largest of electric motors
are used for ship propulsion, pipeline compression and
pumped-storage applications with ratings of several megawatts.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] FIG. 1 illustrates a conventional electric motor system.
[0005] FIG. 2 illustrates an example cross-sectional view of an
electric motor system in accordance with one or more
implementations described herein.
[0006] FIG. 3 illustrates an example top-sectional view of an
electric motor system in accordance with one or more
implementations described herein.
[0007] FIG. 4 illustrates an example isometric view of an orbiting
rotor winding in accordance with one or more implementations
described herein.
[0008] FIG. 5 is an example method for manufacturing an electric
motor system in accordance with one or more implementations
described herein.
[0009] The Detailed Description references the accompanying
figures. In the figures, the left-most digit(s) of a reference
number identifies the figure in which the reference number first
appears. The same numbers are used throughout the drawings to
reference like features and components.
DETAILED DESCRIPTION
[0010] Described herein is a technology for an electric motor
system that reduces stress in motor shaft bearings; thus reducing
wear and increasing life of such bearing. Furthermore, the
technology described herein provides adequate heat
dissipation/ventilation to improve the performance and life of an
electric motor system.
[0011] As an example implementation herein, the electric motor
system includes a motor shaft that is coupled by the motor shaft
bearings to a motor frame, a motor-shaft arm that extends
perpendicularly from the motor shaft, and rotor windings that are
associated with an end (or tip) of the motor-shaft arm. In this
configuration, the rotor windings orbit an axis of the motor shaft
with the length of the motor-shaft arm as its radius.
[0012] Furthermore, the electric motor system includes a stator
housing with a C-shaped stator windings that envelop a
circumferential path surface of the orbiting rotor windings. For
example, the circumferential path surface includes outer surface of
a ring that is defined by a circular path of the orbiting rotor
windings. In this example, the radius would be the length of the
motor-shaft arms plus the size of the rotor windings.
[0013] To reduce the stress in the motor shaft bearings, a
gyroscopic principle is adapted on a structure that includes the
motor shaft, the motor-shaft arm, and the orbiting rotor windings.
For example, when the motor shaft spins, an angular momentum that
is created by the orbiting rotor windings may relieve the motor
shaft bearings of stress due to gravitational weight of the motor
shaft and the motor-shaft arm. In this example, the motor shaft
bearings will experience less amount of weight that it will receive
from the motor shaft.
[0014] With this gyroscopic structure, the electric motor system is
also provided with adequate heat ventilation. For example, when the
motor-shaft arms spins during operation, the generated heat in the
stator and rotor windings are channeled through an air gap on top
or below the motor-shaft arms. The air gap is a space in between
the motor-shaft arms and the motor frame. Furthermore, this air gap
may be utilized for installation of an internal cooling system. For
example, the internal cooling system utilizes refrigerants, chilled
water, etc. to cool the channeled heat from the stator and rotor
windings. In other words, in addition to external cooling system
(e.g., heat sink), the internal cooling system allows heat
displacement within the electric motor system.
[0015] As an example implementation herein, the electric motor
system further derives additional heat ventilation through the air
gap in between the motor frame and the stator housing. For example,
the heat that is generated by the stator and rotor windings may be
channeled further through this air gap at back surface of the
stator housing. In this example, the motor-shaft arms act as a vane
to further enhance the airflow within the motor frame. This way,
the external cooling system will be more efficient since it will
react in an even distribution of heat relief.
Example Conventional Electric Motor
[0016] FIG. 1 illustrates a conventional electric motor system 100.
The electric motor system 100 typically includes a motor frame 102,
a stator housing 104 with associated stator windings 106, a wiring
cover 108, a motor shaft 110 with associated rotor windings 112,
fan blades 114, bearings 116 and end bells 118.
[0017] In the conventional electric motor 100, a common source of
breakdown is due to over heating in its stator and rotor windings.
For example, the over heating may be due to wear and tear in the
bearings 116 or it may be due to over loading. In this example, the
over heating is further intensified by insufficient heat
ventilation in the structure of the electric motor system 100.
[0018] A basic operation of the electric motor 100 involves the
stator windings 110 being energized by a current (not shown)
flowing through its coil windings. Due to this inrush of energizing
current, the stator windings 110 establish a magnetic field. Since
the stator housing 104 is typically constructed throughout an inner
diameter of the motor frame 102, the associated stator windings 106
will necessarily establish revolving magnetic fields as well.
[0019] Following magnetism principle, the revolving magnetic fields
will induce currents to the rotor windings 112. These induced
currents will similarly generate magnetic fields, albeit of
opposite polarity. Since opposite polarities are attracted to each
other, the revolving magnetic fields that are generated by the
stator windings 104 may produce a torque on a structure of the
rotor windings 112. This torque pulls and pushes the structure of
the rotor windings 110 and thereby facilitates the turning of the
motor shaft 110.
[0020] When the motor shaft 110 increases in speed, the inrush of
energizing current and the induced currents are dramatically
reduced as well. However, at any instant that the speed of the
motor shaft 110 is reduced from its proper speed, for example, due
to presence of over loading or seizure in the bearings 116, then
the rotor and stator windings will again experience an increase in
current flow and generated magnetic fields. A continuous exposure
to this state will generate heat that may damage the insulation of
the stator and rotor windings. In other words, without proper heat
ventilation structure to take out the heat, the stator and rotor
windings will easily get damaged. The torque shift in the rotor
will create areas of gap tolerance changes at the top and bottom of
the rotor and stator windings and this may cause arcing and
lamination breakdown in the electric motor system.
Bearing Stress
[0021] With continuing reference to FIG. 1, the torque creates a
stress on the bearings 116, which couple the motor shaft 110 to the
end bells 118. This stress includes an amount of force that is
exerted on the bearings 116. For example, the amount of force is in
upward, downward or sideway directions. In other words, the life of
the bearings 116 may be shortened by this stress. As a result, the
life of the electric motor 100 may be reduced as well since any
misalignment between the stator and rotor windings or any seizure
or friction in the bearings 116 will over heat the electric motor
100 as discussed above.
[0022] The stress in the bearings 116 may be present due to the
torque during startup, regular speed, or stop phases of the motor
shaft 110. For example, an angular momentum of the spinning rotor
windings 112 will generate the stress towards axial direction of
the motor shaft 110. In this example, the bearings 116 will
ultimately carry this stress that is received by the motor shaft
110. In another example, the bearings 116 will ultimately carry the
stress that is created by the weight of the motor shaft 100 and its
associated rotor windings 112 when the electric motor 100 is at
rest.
Heat Ventilation
[0023] Another deficiency of the conventional electric motor 100 is
inability of the fan blades 114 and the end bells 118 to dissipate
heat. For example, during normal operation, the stator windings 106
and the rotor windings 112 generate extreme heat. In this example,
the fan blades 114 are positioned to vent the generated extreme
heat through an air gap in between surfaces of the rotor windings
112 and the stator windings 106. In other words, the air gap is
limited by the distance of the surface of the rotor windings 112 to
the exposed surface of the stator windings 106.
[0024] Since there is a trade in between this distance and a power
factor (i.e., power efficiency) of the electric motor system 100,
the air gap cannot be widened without decreasing the power
efficiency. For example, the air gap may be narrowed and the power
factor is increased; however, this narrow air gap generates more
heat due to a lesser clearance for the fan blades 114 to dissipate
the heat. On the other hand, the air gap may be widened and the
power factor is decreased; however, a lesser power factor means a
lesser torque created in the motor shaft 110 by the revolving
magnetic fields. To this end, a higher energy (i.e., horsepower) is
required to maintain proper speed (or synchronized frequency).
Cross-Sectional View of Example Electric Motor System
[0025] FIG. 2 is an example cross-sectional view 200 of the
electric motor system in accordance with one or more
implementations of the technology described herein. The
cross-sectional view 200 shows a spherical motor frame 202, a
stator housing 204 with associated stator windings 206, bearings
208, a motor shaft 210, a motor-shaft arm 212 with associated rotor
windings 214, a power supply 216, and a cooling mechanism 218.
[0026] As an example of present implementations herein, the motor
frame 202 is built to protect electric motor components that are
positioned within the motor frame 202. For example, the motor frame
202 is made of composite materials to shield the stator and rotor
windings from hot, wet, corrosive, and other weathering
conditions.
[0027] As shown, the motor frame 202 is associated to the stator
housing 204 in such a way that an air gap (i.e., physical space) is
allocated in between the two. For example, the stator housing 204
is manufactured to include multiple supporting flanges that
attaches the stator housing 204 to the motor frame 202. In this
example, the spacing in between the multiple supporting flanges,
and the air gap (i.e., distance) that the supporting flanges create
between the motor frame 202 and the stator housing 204 will provide
a heat ventilation at the rear area of the stator windings 206. The
heat ventilation, for example, may be implemented by inserting
internal cooling system lines in the air gap. The internal cooling
system lines are components of the cooling mechanism 218.
[0028] As an example of present implementations herein, the stator
windings 206 are wound to form a circular C-shaped winding. In this
example, the C-shaped winding includes an upper hemispherical
winding (i.e., upper arc) and a lower hemispherical winding (i.e.,
lower arc) to envelope the rotor windings 214. The upper and lower
hemispherical windings, for example, may be wound linearly and a
middle section in between these hemispherical windings may allow
the generated heat to pass through. For example, the generated heat
in the stator and rotor windings will pass through the air gap in
between the motor frame 202 and the stator housing 204.
[0029] As opposed to the positioning of the stator and rotor
windings in FIG. 1, the air gap in between the stator windings 206
and the rotor windings 214 in accordance with one or more
implementations of the technology described herein are not affected
by the trade in between the size of the air gap and the power
factor. In other words, the air gap in between the stator windings
206 and the rotor windings 214 may be designed to obtain maximum
power efficiency and without regard to the generated heat at this
maximum power efficiency.
[0030] As an example of present implementation herein, the bearings
208 couple the motor shaft 210 to the motor frame 202. In this
example, the motor shaft 210 is positioned vertically in the motor
frame 202 such that a top end and a bottom end of the motor shaft
210 is held by an upper bearing 208-2 and a lower bearings 208-4,
respectively.
[0031] To relieve the bearings 208 of the stress, the structure
that includes the motor shaft 210, the motor-shaft arm 212 and the
associated rotor windings 214 are constructed based on gyroscopic
flywheel principle. That is, the angular momentum in the motor
shaft 210 is dramatically reduced when the structure is in
operation. For example, due to spinning of the motor-shaft arm 212
and the associated rotor windings 214, the exerted torques and
gravitational effect of the weight of the structure are stabilized.
This gyroscopic flywheel principle is well known and may be adapted
in accordance with one or more implementations of the technology
described herein
[0032] With continuing reference to FIG. 2, the motor-shaft arm 212
is configured to extend perpendicularly for example, from a center
(e.g., midpoint) of the motor shaft 210. For example, the
motor-shaft arm 212 is an elongated bar that couples the rotor
windings 214 to the center of the motor shaft 210. In this example,
the rotor windings 214 is collinear with the connecting center of
the motor shaft 210. When the motor shaft 210 spins, the rotor
windings 214 orbits the center or midpoint of the motor-shaft arm
212 with the motor-shaft arm length as its radius. Furthermore, the
motor-shaft arm 212 may be configured to act as a vane to circulate
airflow within the motor frame 202. For example, when the
motor-shaft arm 212 spins during operation, the vane configuration
circulates and channels the airflow to the location of the cooling
mechanism 218.
[0033] As an example of present implementation herein, the rotor
windings 214 include a north side and a south side windings. In
between these two windings is a section that is exposed (i.e., lies
in the same plane) to the section that is in between the upper and
lower hemispherical windings of the stator windings 206. These
sections in the stator and rotor windings may provide a path for
channeling of the generated heat through the air gap on top or
below the motor-shaft arm 212.
[0034] As an example of present implementation herein, the air gap
on top or below the motor-shaft arm 212 creates more room for the
heat ventilation of the electric motor system in accordance with
one or more implementations of the technology described herein. For
example, the cooling mechanism 218 may be installed in addition to
external cooling system (e.g., heat sink) that may be positioned
outside of the motor frame 202. In this example, the cooling
mechanism 218 may include running a refrigerant or other cooling
devices to the air gap on top or below the motor-shaft arm 212. In
another example, the cooling mechanism lines may be inserted in the
motor-shaft arms 212 and in the air gap behind the stator housing
204.
[0035] The electric motor described above may be utilized, for
example, in a turbine, in a generator, in deep water pumps, and the
like. For example, the turbine includes a power source that
supplies energy to the electric motor system in order to generate
mechanical energy. In this example, the mechanical energy is
supplied by the revolution of the motor shaft 210.
[0036] Alternatively, the configuration of the motor-shaft arm 212
and the motor shaft 210 may have additional rotor and stator
windings on the same motor shaft for additional torque. For
example, the physical number of motor-shaft arm 212 and
corresponding rotor windings 214 are increased for additional
torque. In this example, the rotor windings 214 may be developed or
wound to form a circle and without the sections in between its
north and south windings. In this manner, the variable winding
configuration in the rotor windings 214 will correspondingly vary
the received torque and the revolution speed (e.g., revolution per
minute (RPM)) as well.
Top-Sectional View of Example Electric Motor
[0037] FIG. 3 is a top-sectional view 300 of the electric motor
system in accordance with one or more implementations of the
technology described herein. The top-sectional view 300 shows rotor
windings 214 and corresponding motor-shaft arms 212, a
circumferential path surface 302, and an air gap 304 in between the
motor frame 202 and the stator windings 206.
[0038] As an example implementation herein, the four rotor windings
214 are identical and they are positioned equidistant with one
another in a plane that is perpendicular to the positioned motor
shaft 210. When the stator windings 206 are energized, the rotor
windings 214 orbit the center of the motor shaft 210. Intuitively,
an angular momentum will be created on axial axis of the motor
shaft 210; however, the structure of the four rotor windings 214
and the motor-shaft arms 212 may be constructed to adapt the
gyroscopic flywheel principle. With this gyroscopic configuration,
reluctance pulsing of the energizing currents at operating speeds
may still provide the same amount of torque in the electric motor
system and thereby increases the life cycle runtime.
[0039] During operation, the orbiting rotor windings 214 defines
the circumferential path surface 302 that includes an outer
surfaces of a ring that is defined by the orbiting rotor windings
214. This circumferential path surface 302 is enveloped by the
C-shaped stator windings 206. For example, the C-shaped stator
windings 206 envelope at least seventy five percent (or three
quarters) of the rotor windings 214. In this example, the
interacting magnetic fields between the stator and rotor windings
will further facilitate the stabilization of the angular momentum
in the motor shaft 210 of the electric motor system.
[0040] With continuing reference to FIG. 3, the air gap 304 may
allow ventilation of heat that is generated by the stator and rotor
windings. For example, the air gap 304 will circulate the heat
coming from the sections of the stator and rotor windings to the
air gap on top or below the motor-shaft arms 212.
Example Isometric View of Orbiting Rotor Windings
[0041] FIG. 4 illustrates an example isometric view 400 of the
orbiting rotor. As shown, the isometric view 400 includes an upper
hemispherical windings 402, a lower hemispherical windings 404, a
north side windings 406, a south side windings 408, and sections
410.
[0042] As an example of present implementation herein, the upper
hemispherical windings 402 and the lower hemispherical windings 404
define the C-shaped stator windings 206. For example, the upper
hemispherical windings 402 form the upper arc while the lower
hemispherical windings 404 form the lower arc of the C-shaped
stator. In this example, the rotor windings 214 orbit within (i.e.,
inside) of this C-shaped stator windings while an opening in the
mouth of the C-shaped stator windings includes a clearance that is
wide enough to allow the motor-shaft arms 212 to pass through.
[0043] As an example of present implementation herein, the upper
hemispherical windings 402 and the lower hemispherical windings 404
may include a circular linear winding.
[0044] With continuing reference to FIG. 4, the north side windings
406 and the south side windings 408 form the rotor windings 214.
The north side windings 406 is paired with the enveloping upper
hemispherical windings 404 while the south side windings 408 is
paired with the enveloping lower hemispherical windings 406. In
this example, the north side windings 406 and the south side
windings 408 may include a semi-circular winding.
[0045] The section 410-2 is a space in between the between the
upper hemispherical windings 402 and the lower hemispherical
windings 404. On the other hand, the section 410-4 is the space in
between the north side windings 406 and the south side windings
408. These sections 410-2 and 410-4 in the rotor and stator
windings are identical and collinear. These section are, for
example, utilized as a path for ventilating the heat through the
air gaps as discussed in FIGS. 2 and 3.
[0046] In other implementations, the rotor windings 214 may be
configured to include a full solid circular windings as opposed to
equally divided north and south winding sections as shown in FIG.
4. For example, the full solid circular rotor windings will be
enveloped by a full stator windings as well. In this example, the
rotor windings 214 receive more amount of inducing currents that
facilitate greater full load torque during operation.
[0047] As an example application of the electric motor system in
FIG. 4, the motor shaft 210, the orbiting rotor windings 214 and
the corresponding motor-shaft arms 212 may facilitate power to a
turbine such as, for example, of a jet turbine. For example, the
equally divided north and south winding sections of the rotor
windings 214 will provide higher speed (e.g., revolutions per
minute (RPM)) without need of gas combustions in existing jet
turbines. In this example, the motor-shaft arms 212 may be
configured to act as turbine vanes as well.
Example Method of Electric Motor System Manufacturing
[0048] FIG. 5 shows an example flowchart 500 illustrating an
example method of manufacturing an electric motor system that
reduces stress in motor shaft bearings and at the same time,
provides adequate heat ventilation in the electric motor
system.
[0049] At block 502, an electric motor system is assembled by
positioning a motor shaft in a motor frame. For example, the motor
shaft 210 is positioned vertically in the motor frame 202.
[0050] At block 504, the electric motor system assembly includes
positioning of a motor-shaft arm to the motor shaft. For example,
the motor-shaft arm 212 extends perpendicularly from a center or
midpoint of the motor shaft 210.
[0051] At block 506, the electric motor system assembly is
configured to include positioning of rotor windings in the
motor-shaft arm. For example, the rotor windings 214 is associated
with a tip of the motor-shaft arm 212. In this example, the rotor
windings 214 orbit the center or midpoint of the motor shaft
210.
[0052] At block 508, the electric motor system assembly is
configured to include forming a C-shaped stator windings. For
example, the C-shaped stator windings 206 envelope substantially
the rotor windings 214. In this example, the rotor windings 214
orbit inside the C-shaped stator windings 206 while an opening in
the C-shaped stator windings 206 includes a clearance for the
motor-shaft arm 212 that is attached to the rotor windings 214.
Additional and Alternative Implementation Notes
[0053] In the above description of exemplary implementations, for
purposes of explanation, specific numbers, materials
configurations, and other details are set forth in order to better
explain the present invention, as claimed. However, it will be
apparent to one skilled in the art that the claimed invention may
be practiced using different details than the exemplary ones
described herein. In other instances, well-known features are
omitted or simplified to clarify the description of the exemplary
implementations.
[0054] The inventor intends the described exemplary implementations
to be primarily examples. The inventor does not intend these
exemplary implementations to limit the scope of the appended
claims. Rather, the inventor has contemplated that the claimed
invention might also be embodied and implemented in other ways, in
conjunction with other present or future technologies.
[0055] Moreover, the word "exemplary" is used herein to mean
serving as an example, instance, or illustration. Any aspect or
design described herein as exemplary is not necessarily to be
construed as preferred or advantageous over other aspects or
designs. Rather, use of the word "exemplary" is intended to present
concepts and techniques in a concrete fashion. The term
"technology," for instance, may refer to one or more devices,
apparatuses, systems, methods, articles of manufacture, and/or
computer-readable instructions as indicated by the context
described herein.
[0056] As used in this application, the term "or" is intended to
mean an inclusive "or" rather than an exclusive "or." That is,
unless specified otherwise or clear from context, "X employs A or
B" is intended to mean any of the natural inclusive permutations.
That is, if X employs A; X employs B; or X employs both A and B,
then "X employs A or B" is satisfied under any of the foregoing
instances. In addition, the articles "a" and "an" as used in this
application and the appended claims should generally be construed
to mean "one or more," unless specified otherwise or clear from
context to be directed to a singular form.
[0057] These processes are illustrated as a collection of blocks in
a logical flow graph, which represents a sequence of operations
that can be implemented in mechanics alone or a combination with
hardware, software, and/or firmware. In the context of
software/firmware, the execution of the instructions on the medium
may cause performance of the operations described herein.
[0058] Note that the order in which the processes are described is
not intended to be construed as a limitation, and any number of the
described process blocks can be combined in any order to implement
the processes or an alternate process. Additionally, individual
blocks may be deleted from the processes without departing from the
spirit and scope of the subject matter described herein.
* * * * *